The Samsung INR21700-50S 3.7V 5000mah 21700 battery cell is engineered for serious drone pilots. With 5000mAh capacity and 25A continuous discharge (40A peak) , the Samsung 21700 cell delivers instant throttle response and extended flight times. Ultra-low internal resistance (10.4mΩ) minimizes voltage sag and heat buildup, keeping pack temperatures cool during aggressive FPV or heavy-lift missions. Whether building a 4S long-range cruiser or a 6S professional UAV, the Samsung 50S provides the power, endurance, and reliability to meet your drone demands.
1.Basic Parameters
| Battery Model | INR21700-50S |
| Battery Type | 21700 Cylindrical Cell |
| Nominal Voltage | 3.7V |
| Nominal Capacity | 5000mAh |
| Working Voltage | 2.5V-4.2V |
| Max Charge Current | 1.2C |
| Max Discharge Current | 5C |
| Peak Discharge Current | 8C |
| Internal Resistance | ≤14mΩ |
| Charge Temperature | -0-45℃ |
| Discharge Temperature | -20-60℃ |
| Storage Temperature | -20-45℃ |
| Cycle Life | ≥500 cycles |
| Battery Size | φ21*70mm |
| Battery Weight | 68g |
| Warranty | 2 Years |
Higher energy density
The 21700 cell offers greater capacity (typically 4000–5000 mAh) than the older 18650 cell, without a significant increase in size.
Improved power output
It supports higher continuous discharge currents, making it suitable for high-drain applications like e-bikes, power tools, and EVs.
Better thermal management
The larger cylindrical format allows for more efficient heat dissipation, enhancing safety and cycle life compared to smaller cells.
Cost-effective performance
Fewer cells are required to achieve the same pack capacity (e.g., replacing 3-4 18650 cells with 2-3 21700 cells), reducing assembly complexity and overall system cost.
What 21700 cells does NOGIPower supply?
| Manufacturer Model | Material | Voltage | Capacity | Brand | Cycles life | Peak discharge Rate |
| INR21700/40P | NMC | 3.7V | 4000mAh | EVE | ≥600 Cycles | 12.5C |
| INR21700/40PL | NMC | 3.7V | 4000mAh | ≥600 Cycles | 22.5C | |
| INR21700/50E | NMC | 3.7V | 5000mAh | ≥1000 Cycles | 5C | |
| 21700/50PL | NMC | 3.7V | 5000mAh | ≥1000 Cycles | 36C | |
| INR21700/58E | NMC | 3.7V | 5700mAh | ≥1000 Cycles | 5C | |
| INR21700-30T | NMC | 3.7V | 3000mAh | SAMSUNG | ≥500 Cycles | 11C |
| INR21700-40T | NMC | 3.7V | 4000mAh | ≥500 Cycles | 11.25C | |
| INR21700-50E | NMC | 3.7V | 5000mAh | ≥1000 Cycles | 3C | |
| INR21700-50GB | NMC | 3.7V | 5000mAh | ≥1000 Cycles | 3C | |
| INR21700-50S | NMC | 3.7V | 5000mAh | ≥500 Cycles | 8C | |
| INR21700-45E | NMC | 3.7V | 4500mAh | DMEGC | ≥1000 Cycles | 4C |
| INR21700-50E | NMC | 3.7V | 5000mAh | ≥1000 Cycles | 4C | |
| 2170 (JP40) | NMC | 3.7V | 4000mAh | Ampace | ≥600 Cycles | 35C |
| INR-21700-P42A | NMC | 3.7V | 4200mAh | Molicel | ≥500 Cycles | 10.5C |
| INR‑21700‑P45B | NMC | 3.7V | 4500mAh | ≥500 Cycles | 10C | |
| INR‑21700‑P50B | NMC | 3.7V | 5000mAh | ≥500 Cycles | 12C | |
| ND21700-4000mAh-3C | NMC | 3.7V | 4000mAh | NORDA | ≥800 Cycles | 4C |
| ND21700-40H | NMC | 3.7V | 4000mAh | ≥300 Cycles | 10C | |
| ND21700-4500mAh-3C | NMC | 3.7V | 4500mAh | ≥800 Cycles | 4C | |
| ND21700-5000mAh | NMC | 3.7V | 5000mAh | ≥500 Cycles | 3C |
A: Our batteries are certified with UN38.3, CE, FCC, RoHS, IEC62133, UL and other regional certifications as required.
A: Yes, we can provide full documentation including MSDS, UN38.3 test report, cargo transport assessment report, and certification files.
A: No strict MOQ requirement. Small samples are available for testing.
A: Yes, FOB/CIF/DAP/DDP are all available for most countries. DDP (door to door and duty paid) is preferred by a larger number of customers.
A: Yes, battery pack/OEM/ODM available.
Q: What makes the Samsung INR21700-50S suitable for high-performance drones?
Our Samsung INR21700-50S battery cell is engineered with a high 5000mAh capacity and supports 25A continuous discharge, meeting the demanding power needs of drones. Its low internal resistance and wide temperature range enhance performance and reliability in various drone applications.
Q: Can we order customized battery packs using the Samsung 21700 battery cells?
Yes, we offer OEM and ODM customization services to tailor battery packs built from Samsung 21700 battery cells. This ensures your specific voltage, capacity, and form factor requirements are met for optimal integration into your drone or industrial equipment.
Q: How do you ensure the safety and quality of your 21700 battery cells?
All our 21700 battery cells, including the Samsung INR21700-50S, are certified with UN38.3 and UL standards. We conduct thorough quality assurance and partner only with trusted battery cell manufacturers to guarantee safe, compliant, and dependable products.
Q: Is there a minimum order quantity for purchasing Samsung 21700 battery cells?
We do not require a strict minimum order quantity. We understand the need for testing and validation, so small sample quantities of our Samsung 21700 battery cells are available for evaluation before bulk purchasing decisions.
5.Who We are?
NOGIPower focus on high-performance lithium battery solutions.We have established long-term in-depth cooperation with renowned battery manufacturers including CATL, CALB, EVE and Farasis etc. Our product lineup includes LFP batteries, NMC ternary lithium batteries and energy storage systems, alongside professional OEM & ODM customization services.
All products comply with international standards, featuring superior safety and long service life. Our reliable solutions are widely applied in solar energy storage, vehicles and industrial power sectors. We partner with clients worldwide to advance sustainable energy development.
More info, please contact us: Wechat/WhatsApp: +8613570852640 Email: support@nogipower.com
